.blog {
    width: 100%;
    padding: 10px 20px;
}

.blog>.title {
    text-align: center;
    font-size: 20px;
    font-weight: 700;
    margin: 10px ;
}

.blog>.date {
    color: green;
    text-align: center;
    margin: 10px ;
}

.blog>.desc {
    text-indent: 2em;
    font-family: 黑体;
    font-size: 17px;
}
.blog>.detail {
    display: block;
    text-decoration: none;
    color: black;
    width: 100px;
    height: 30px;
    line-height: 30px;
    text-align: center;
    border: 1px solid black;
    margin: 20px auto 10px auto ;
    transition: all 0.6s;
}
.blog > .detail:hover {
    background-color: #000;
    color: #fff;
}